This lesson is designed for the NEW AQA Trilogy Chemistry GCSE, particularly the ‘Chemical calculations’ SoW and specifically designed for the higher tier GCSE chemistry students.
 
The lesson begins with students learning how to calculate the number of moles of a gas when you know the molar gas volume. Students will then work their way through a set of questions using this calculation, for latter questions students will need to rearrange the equation. This work can then be assessed using the answers provided in the PowerPoint presentation.
 
The next part of the lesson focuses on calculating the masses of gaseous reactants and products, firstly students are shown a worked example. The next task is for pupils to watch a video, using which they should answer a set of questions. Once this task has been completed students shoudl mark their work using the answers provided.
 
Using the formula they have learnt whilst watching the video, they should now complete a set of questions on a specific chemical reaction - this required students to calculate the volume of gases produced or the mass of a reactant needed to produce a certain amount of a gas product. This work can be self-assessed using the answers provided in the PowerPoint presentation.
 
The next task is a further set of problems requiring students to calculate the volume of gaseous reactants or products given a balanced symbol equation for a chemical reaction.
 
The last task requires pupils to come up with 4 exam questions on the topic of gas volumes, they should also include a mark scheme for each of the questions. Once they have competed their questions they should swap with the person next to them and complete their partners questions, these can be self or peer-assessed using the mark schemes they have written.
 
The plenary task is for pupils to write a WhatsApp message to their friends to tell them what they have learnt about this lesson.